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Amplitude dependence of the internal friction of Cu-Mn-Al alloys with a martensite transformation

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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Non-stoichiometric Heusler alloys in the Cu-Mn-Al system possess a high damping capacity, the nature of which is connected with the thermoelastic martensite transformation.

  2. 2.

    Alloys studied in the ferromagnetic state have a low level of amplitude-dependent internal friction which is caused, apparently, by fixation of the domain boundaries at the antiphase boundaries of the ordered domains.

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Literature cited

  1. L. V. Nikoforova, "Relaxation phenomena and phase transformations in ordered Cu-Mn-Al and Co-Mn-Al alloys," Author's abstract of candidate's disseration, Voronezh (1975).

  2. V. M. Kopylova, V. A. Nikiforova, and V. A. Evsyukov, "Superelasticity, memory effect, and their application in new techniques," Tez. Dokl. Vsesoyuznoid Nauchnoi Konferentsii., Voronezh (1982), pp. 119–120.

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  5. A. J. Lapworth and J. R. Jakubovics, "Effect of antiphase boundaries on the magnetic properties of Cu-Mn-Al Heusler alloys. Phil. Mag.,29, No. 2, 253–273 (1974).

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Authors
  1. V. A. Evsyukov
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  2. V. M. Kopylova
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  3. N. V. Agapitova
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  4. M. N. Garshina
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  5. L. V. Nikiforova
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Additional information

Voronezh Polytechnic Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 38–40, March, 1991.

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Evsyukov, V.A., Kopylova, V.M., Agapitova, N.V. et al. Amplitude dependence of the internal friction of Cu-Mn-Al alloys with a martensite transformation. Met Sci Heat Treat 33, 235–238 (1991). https://doi.org/10.1007/BF00769351

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  • DOI: https://doi.org/10.1007/BF00769351

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